NOAA has stated that September 2019 was tied as the second warmest on record for the United States.
The average temperature for September across the contiguous U.S. was 68.5 degrees F (3.7 degrees above the 20th-century average), which ties with 2015 as the second warmest September on record.
The average precipitation for September in the contiguous U.S. was 2.42 inches (0.07 inch below average), which puts the month in the middle third of the 125-year record.
Wetter-than-normal conditions were found from the West Coast to the northern Plains and Great Lakes. North Dakota had its wettest September on record.
Record dry conditions were present across Mississippi, Alabama, Georgia, Florida, Kentucky and West Virginia.